<template>
    <el-form>
        <el-form-item>
            <el-radio v-model="radioValue" :value="1"> 日，允许的通配符[, - * ? / L W] </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model="radioValue" :value="2"> 不指定 </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model="radioValue" :value="3">
                周期从
                <el-input-number v-model="cycle01" :min="1" :max="30" /> -
                <el-input-number v-model="cycle02" :min="cycle01 + 1" :max="31" /> 日
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model="radioValue" :value="4">
                从
                <el-input-number v-model="average01" :min="1" :max="30" /> 号开始，每
                <el-input-number v-model="average02" :min="1" :max="31 - average01" /> 日执行一次
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model="radioValue" :value="5">
                每月
                <el-input-number v-model="workday" :min="1" :max="31" /> 号最近的那个工作日
            </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model="radioValue" :value="6"> 本月最后一天 </el-radio>
        </el-form-item>

        <el-form-item>
            <el-radio v-model="radioValue" :value="7">
                指定
                <el-select
                    clearable
                    v-model="checkboxList"
                    placeholder="可多选"
                    multiple
                    :multiple-limit="10"
                >
                    <el-option v-for="item in 31" :key="item" :label="item" :value="item" />
                </el-select>
            </el-radio>
        </el-form-item>
    </el-form>
</template>
<script setup>
    const emit = defineEmits(['update']);
    const props = defineProps({
        cron: {
            type: Object,
            default: {
                second: '0',
                min: '*',
                hour: '*',
                day: '*',
                month: '*',
                week: '?',
                year: ''
            }
        },
        check: {
            type: Function,
            default: () => {}
        }
    });
    const radioValue = ref(1);
    const cycle01 = ref(1);
    const cycle02 = ref(2);
    const average01 = ref(1);
    const average02 = ref(1);
    const workday = ref(1);
    const checkboxList = ref([]);
    const checkCopy = ref([1]);
    const cycleTotal = computed(() => {
        cycle01.value = props.check(cycle01.value, 1, 30);
        cycle02.value = props.check(cycle02.value, cycle01.value + 1, 31);
        return cycle01.value + '-' + cycle02.value;
    });
    const averageTotal = computed(() => {
        average01.value = props.check(average01.value, 1, 30);
        average02.value = props.check(average02.value, 1, 31 - average01.value);
        return average01.value + '/' + average02.value;
    });
    const workdayTotal = computed(() => {
        workday.value = props.check(workday.value, 1, 31);
        return workday.value + 'W';
    });
    const checkboxString = computed(() => {
        return checkboxList.value.join(',');
    });
    watch(
        () => props.cron.day,
        (value) => changeRadioValue(value)
    );
    watch([radioValue, cycleTotal, averageTotal, workdayTotal, checkboxString], () =>
        onRadioChange()
    );
    function changeRadioValue(value) {
        if (value === '*') {
            radioValue.value = 1;
        } else if (value === '?') {
            radioValue.value = 2;
        } else if (value.indexOf('-') > -1) {
            const indexArr = value.split('-');
            cycle01.value = Number(indexArr[0]);
            cycle02.value = Number(indexArr[1]);
            radioValue.value = 3;
        } else if (value.indexOf('/') > -1) {
            const indexArr = value.split('/');
            average01.value = Number(indexArr[0]);
            average02.value = Number(indexArr[1]);
            radioValue.value = 4;
        } else if (value.indexOf('W') > -1) {
            const indexArr = value.split('W');
            workday.value = Number(indexArr[0]);
            radioValue.value = 5;
        } else if (value === 'L') {
            radioValue.value = 6;
        } else {
            checkboxList.value = [...new Set(value.split(',').map((item) => Number(item)))];
            radioValue.value = 7;
        }
    }
    // 单选按钮值变化时
    function onRadioChange() {
        if (radioValue.value === 2 && props.cron.week === '?') {
            emit('update', 'week', '*', 'day');
        }
        if (radioValue.value !== 2 && props.cron.week !== '?') {
            emit('update', 'week', '?', 'day');
        }
        switch (radioValue.value) {
            case 1:
                emit('update', 'day', '*', 'day');
                break;
            case 2:
                emit('update', 'day', '?', 'day');
                break;
            case 3:
                emit('update', 'day', cycleTotal.value, 'day');
                break;
            case 4:
                emit('update', 'day', averageTotal.value, 'day');
                break;
            case 5:
                emit('update', 'day', workdayTotal.value, 'day');
                break;
            case 6:
                emit('update', 'day', 'L', 'day');
                break;
            case 7:
                if (checkboxList.value.length === 0) {
                    checkboxList.value.push(checkCopy.value[0]);
                } else {
                    checkCopy.value = checkboxList.value;
                }
                emit('update', 'day', checkboxString.value, 'day');
                break;
        }
    }
</script>

<style lang="scss" scoped>
    .el-input-number--small,
    .el-select,
    .el-select--small {
        margin: 0 0.2rem;
    }
    .el-select,
    .el-select--small {
        width: 18.8rem;
    }
</style>
